Standard Ignition VR-421 Voltage Regulator

Reliable Charging System Voltage Regulator for Nissan Pulsar NX

The Standard Ignition VR-421 Charging System Voltage Regulator is designed specifically for Nissan Pulsar NX models. This voltage regulator ensures consistent electrical output from the alternator, maintaining optimal battery performance and vehicle electrical system stability.

• Connector Gender: Female with 1 rectangular connector
• Dimensions: 92.456 x 57.15 x 46.482 mm (3.64 x 2.25 x 1.83 inches)
• Terminal Type: Male blade terminals for secure electrical connections
• Mounting Location: Directly mounts on the alternator
• Voltage Rating: 12 volts, compatible with standard automotive electrical systems
• No additional hardware, mounting brackets, or instructions included

Product Details and Specifications

The VR-421 voltage regulator from Standard Ignition is engineered to fit Nissan Pulsar NX vehicles, providing precise voltage control to the alternator. Its female rectangular connector and single connector quantity simplify installation and ensure a proper fit. The male blade terminals offer reliable electrical contact, reducing the risk of connection failures. Compact dimensions allow for easy mounting on the alternator without interfering with other engine components.

Common Applications and Problem Resolution

• Regulates alternator output voltage to prevent battery overcharging or undercharging
• Resolves electrical issues such as dimming headlights or fluctuating dashboard lights
• Prevents battery drain caused by inconsistent voltage supply
• Addresses alternator-related charging system faults in Nissan Pulsar NX models
• Improves overall electrical system reliability and vehicle starting performance

Installation Notes and Tips

Installation of the Standard Ignition VR-421 voltage regulator requires removal of the old regulator from the alternator. Ensure the vehicle's battery is disconnected before beginning installation to avoid electrical shorts. The regulator mounts directly on the alternator using existing mounting points; no additional hardware is necessary. Verify the connector orientation matches the female rectangular connector and blade terminals align properly for a secure fit.

Quality Assurance and Warranty Information

Standard Ignition parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The VR-421 voltage regulator undergoes rigorous quality control to ensure durability and reliable performance in Nissan Pulsar NX vehicles. While no specific hardware or instructions are included, the part is backed by Standard Ignition's warranty coverage, providing confidence in its long-term operation.